KR20020043507A - Bracket apparatus for earth anchor - Google Patents

Abstract

PURPOSE: A bracket device for an earth anchor is provided to disperse the tensile force of an anchor body evenly as a lightweight structure and to minimize the damage of an anchor body. CONSTITUTION: The bracket device for an earth anchor(100) comprises: a main bearing member(20) with a leader hole(24) for leading the free length(La) of an anchor body(50) to keep a standard tensile angle of an anchor body(50) and to support the tensile force added to the free length(La) of an anchor body(50); a guide member(30) fixed to the main bearing member(20) to minimize friction between the free length(La) of the anchor body(50) and a horizontal bar(80) or the free length(La) of the anchor body(50) and the leader hole(24) by inducting the free length(La) of the anchor body(50) in the tensile direction corresponding to the standard tensile angle of the anchor body(50), if the standard tensile angle of the anchor body(50) doesn't coincide with the tensile direction of the anchor body(50); and an auxiliary bearing member(40) fixed to the main bearing member(20) to disperse the tensile force of the anchor body(50) concentrated to the guide member(30) evenly to the main bearing member(40).

Description

Bracket apparatus for earth anchor

The present invention relates to a bracket for an earth anchor (earth anchor), and in detail, as a lightweight structure can be evenly distributed the tensile force of the anchor body, the earth anchor bracket having a structure that can minimize the damage of the anchor body Relates to a device.

Generally, the earth anchor method of construction is widely known as a method for preventing the earth wall from collapsing due to the ground earth pressure acting as the earth wall when forming the excavation hole according to the excavation work of the civil engineering and construction work.

1 is a cross-sectional view schematically showing the configuration of an earth anchor applied to the general earth anchor method.

Referring to Figure 1, the general earth anchoring method is installed on the horizontal beam (4) on the earth wall (1) formed by the excavation hole, and then drills the perforations (2) having a predetermined inclination angle from the earth wall (1), After anchoring the anchor body 3 to the perforated part 2, the grouting is performed by the length corresponding to the anchorage length Lb of the anchor body 3 to fix the anchor body 3, and then the horizontal beam 4 ), The support bracket 10 is fixedly installed by welding, and a tensile force is applied to the stranded wire of the anchor body 3 drawn out to the free field La of the anchor body 3 to free the field of the anchor body 3 ( By supporting La) on the support bracket 10, it is supported by the anchor body 3 that earth pressure is applied to the earth wall 1, and the earth wall 1 is prevented from collapsing to the excavation hole side.

Figure 2 is a perspective view showing the configuration of a support bracket for earth anchor according to the prior art.

Referring to FIGS. 1 and 2, the support bracket 10 for earth anchor according to the related art is fixed by welding to the horizontal beam 4 before applying a tensile force to the free field La of the anchor body 3. In order to maintain the tension angle of the anchor body 3, a pair of side plates 11 are spaced apart at predetermined intervals and span the horizontal beam 4, and support the tension force applied to the anchor body (3) While being fixed to the side plate 11 to be disposed perpendicular to the tension angle of the anchor body 3 in order to distribute the support pressure corresponding to the tensile force to the side plate 11, the free length of the anchor body ( La is provided with the pressure plate 12 which has the drawing-out hole 12a which can be taken out.

By the way, since the support bracket for earth anchor according to the related art simply depends on the side plate and the pressure plate to distribute the support pressure with respect to the tensile force of the anchor body, the side plate and the pressure plate do not overcome the support pressure and the pressure plate is bent, The side plate is warped, which leads to a problem that the tension force of the anchor body required by the specification cannot be applied. In order to overcome this problem, the thickness of the pressure plate and the side plate is unnecessarily extended as a temporary measure in the field, which results in a decrease in workability due to the high weight and size of the material and an uneconomical construction work.

In addition, in the general earth method, the stranded wire of an anchor body having 4 to 5 stranded wires is tensioned with a hydraulic jack or the like to be supported by a pressure plate using a cone, or the stranded wire is pulled by pulling a screw body connected to the stranded wire. In the tensioned state, the nut is coupled to the screw body to be supported on the pressure plate. In the case of construction, the reference tension angle of the anchor body and the tension direction of the corresponding anchor body often do not coincide with each other.

However, in the former and the latter cases as described above, since the support bracket according to the related art does not have a structure in which the anchor body can be spaced apart by a predetermined distance from the lead hole of the pressure plate and the horizontal beam, a tension force is applied to the anchor body. A closed end is generated such that the stranded wire of the anchor body is cut while being rubbed with the drawing hole and the horizontal beam of the pressure plate, resulting in a problem that the tensile force of the anchor body required for the specification cannot be exerted. In particular, in the latter case, the tension direction of the screw body with respect to the stranded wire is varied as the tension direction of the anchor body changes with respect to the tension angle of the anchor body. As the thread of the friction is worn out by rubbing the lead hole of the pressure plate, there is a problem that can not be fastened to the nut.

In addition, since the support bracket for the earth anchor according to the related art is fixedly fixed to the horizontal beam by welding, it is necessary to cut the support bracket from the horizontal beam using an oxygen cutter during the dismantling of the support bracket. This causes damage to the horizontal beams, which causes the problem that the horizontal beams cannot be recycled.

The present invention has been conceived to improve the above problems, to eliminate the inefficient construction of the field construction, and to respond to the tensile force of the anchor body as a lightweight structure to maximize the tensile force of the anchor body required for economic and specification By evenly distributing the supporting pressure, it is possible to maximize the tensile force of the anchor body required, and even when the reference tension angle of the anchor body and the tension direction of the corresponding anchor body does not coincide with each other in the field construction It is an object of the present invention to provide a bracket device for an earth anchor having a structure capable of minimizing damage.

1 is a cross-sectional view schematically showing the configuration of an earth anchor applied to the general earth anchor method.

Figure 2 is a perspective view showing the configuration of a support bracket for earth anchor according to the prior art.

Figure 3 is a perspective view showing the configuration of the bracket anchoring device for earth according to the first embodiment of the present invention.

4 is an exploded perspective view of FIG. 3.

5 is a cross-sectional view of FIG. 3.

6 is a cross-sectional view schematically showing a state in which the bracket device shown in FIG. 5 is applied to the earth anchor method.

7 and 8 are cross-sectional view showing an example of the use of the bracket device for earth anchors according to the first embodiment of the present invention.

9 and 10 are graphs showing the tensile test results of the support bracket according to the prior art.

11 and 12 are graphs showing the tensile test results of the bracket device according to the invention.

Figure 13 is an exploded perspective view showing the configuration of the bracket device for earth anchors according to a second embodiment of the present invention.

14 is a perspective view of the combination of FIG.

<Description of the symbols for the main parts of the drawings>

20 ... Main support member 21 ... Support plate

22a, 22b ... Base Plate 23 ... Acupressure Plate

24. Draw-out hole 30 ... Guide member

31 ... pipe 40,90 ... auxiliary supporting member

41 ... Horizontal Plate 42 ... Horizontal Plate

43 ... Mount 50,60 ... Anchor

La ... Free Field Lb ... Settlement Field

51 ... cone 61 ... threaded body

62. Nut 70. Earth wall

71. Earth plate A ... excavator

B ... perforation 80 ... horizontal beam

91 ... fitting hole 92 ... fitting protrusion

Earth anchor bracket device according to a preferred embodiment of the present invention for achieving the above object, in order to prevent the earth wall is collapsed by the ground earth pressure acting as the earth wall when the excavation hole formed according to the excavation work of civil engineering and construction work After the horizontal beam is installed on the earth wall, the perforated part is formed to be inclined at a predetermined angle from the earth wall, the anchor body having a predetermined length is installed at the perforated part, and the grout is applied to the anchorage of the anchor body. And an earth anchor for fixing the free field of the anchor body to the support bracket in a state in which a predetermined tensile force is applied to the free field of the anchor body, while maintaining the reference tension angle of the anchor body and at the same time the free field of the anchor body. A drawing hole fixedly installed in the horizontal beam so as to support a tensile force applied to the anchor, and withdrawing a free length of the anchor body Main support member having a; When the reference tension angle of the anchor body and the tension direction of the anchor body corresponding thereto do not coincide with each other, the free field of the anchor body is guided in the tensile direction corresponding to the reference tension angle of the anchor body, A guide member fixed to the main support member so as to correspond to a reference tension angle of the anchor body in order to minimize friction between the free beam of the horizontal beam or the anchor body and the drawing hole; And an auxiliary support member fixed to the guide member and the main support member so as to substantially distribute the tensile force of the anchor body intensively applied to the guide member to the main support member.

In the bracket device for earth anchors according to the present invention, the main support member: has an inclined side perpendicular to the reference tension angle of the anchor body, is installed spaced apart a predetermined interval so as to span across the horizontal beam A pair of support plates on which an auxiliary support member is fixed to each inner side surface; A base plate fixed to a lower end of a support plate respectively corresponding to the top surface of the horizontal beam to support the support plate and to disperse the frictional force of the support plate with respect to the top surface of the horizontal beam; And acupressure plate fixedly installed on the inclined sides of each of the support plates so that the support pressure corresponding to the tensile force of the anchor body can be distributed to the guide member and the support plate, and the guide member is fixed to communicate with the drawing hole. do.

In the bracket for earth anchors according to the present invention, the guide member includes: a cylindrical pipe body having an inner diameter that matches the inner diameter of the outlet hole and fixed perpendicularly to the bottom surface of the pressure plate.

In the bracket for earth anchor according to the present invention, the pipe body has a length extending from the bottom surface of the shiatsu plate to the reference line of the base plate bottom so as to be able to contact the end of the base plate, the oblique line from the reference line of the base plate It is preferable to be cut inclined at a predetermined angle in the direction.

In the bracket for earth anchors according to the present invention, the auxiliary support member is: the guide member is fixedly installed, in order to primarily distribute the tensile force of the anchor body applied to the pressure plate and the guide member at the same time to the support plate A horizontal plate fixed to an inner surface of the support plate to be relatively horizontal with the acupressure plate; And fixedly installed on an inner surface of the support plate so as to distribute the tensile force of the anchor body simultaneously applied to the acupressure plate, the guide member and the horizontal plate to the support plate, and to be perpendicular to the horizontal plate. And a vertical plate extending integrally with the plate.

In the bracket device for earth anchors according to the present invention, the auxiliary support member is formed integrally with the vertical plate to selectively mount the main support member to the horizontal beam, the base plate relative to the vertical plate It further includes a mounting portion bent to be spaced apart from the bottom by a predetermined interval.

In the bracket device for earth anchors according to the present invention, the horizontal plate of the auxiliary support member is: a predetermined length toward the inner surface of the support plate, respectively, so as to be selectively fitted and fixed to the fitting holes formed in the respective support plates. Further provided with a protrusion formed projections.

Therefore, the present invention has a structure in which the support pressure with respect to the tensile force of the anchor body can be evenly distributed to the main support member by the guide member and the auxiliary support member. Thus, the tensile force of the anchor body is sufficiently overcome by the tensile force of the anchor body. As a result, the main support member is not bent or warped, and as a result, not only can sufficiently exert the tensile force of the anchor body required for the specification, but also unlike the conventional art, it can sufficiently support the tensile force of the anchor body even under a light weight structure. There is a feature in that the weight is light, the workability is improved, and the manufacturing cost can be reduced.

In addition, the present invention is provided with a guide member for guiding the tensile direction of the anchor body, so that the free field of the anchor body is acupressure even if the reference tension angle of the anchor body and the tension direction of the anchor body corresponding thereto does not coincide with each other in the field construction. There is no fear of damage to the anchor body by not interfering with the outgoing hole of the plate and horizontal beam, and the product can be standardized to cope with the reference tension angle of the anchor body and has a structure that can be mounted on the horizontal beam. The construction is improved, the air is shortened, and it is possible to reuse the horizontal beams by not damaging the horizontal beams during the dismantling operation. Since it has a structure that can be fitted to the support member to be fixed, as a result, as the manufacturability is improved further It is characterized by a higher competitive advantage.

Hereinafter, with reference to the accompanying drawings, the bracket for earth anchor according to a preferred embodiment of the present invention will be described in detail.

3 is a combined perspective view showing the configuration of the bracket device for an earth anchor according to the first embodiment of the present invention, Figure 4 is an exploded perspective view of Figure 3, Figure 5 is a cross-sectional configuration of Figure 3, Figure 6 5 is a cross-sectional configuration diagram schematically showing a state in which the bracket device shown in FIG. 5 is applied to the earth anchor method.

3 to 6, the earth anchor bracket device 100 according to the first embodiment of the present invention acts as the earth wall 70 when the excavation hole A is formed according to the excavation work of civil engineering and construction work. In order to prevent the earth wall 70 from collapsing due to the ground earth pressure, a horizontal beam 80 is provided on the earth wall 70, and then the perforated portion B is formed to be inclined at a predetermined angle from the earth wall 70. After the anchor body 50 having a predetermined length is installed in the perforated portion B, the anchor body 50 is fixed by grouting the anchorage length Lb of the anchor body 50, thereby fixing the anchor body 50. The present invention is applied to an earth anchor method capable of fixing the free field La of the anchor body 50 while applying a predetermined tensile force to the free field La.

Earth anchor bracket device 100 according to the first embodiment of the present invention, by evenly dispersing the tensile force of the concentrated anchoring body 50 is anchor required in the specification without the occurrence of warpage and distortion even in a lightweight structure When the tensile force of the sieve 50 can be exhibited to the maximum, and the reference tension angle of the anchor 50 and the tensile direction of the anchor 50 corresponding thereto do not coincide with each other, the free length of the anchor 50 Induces La in the tensile direction corresponding to the reference tension angle of the anchor body 50 so that the free field La of the anchor body 50 and the horizontal beam 80 or the free field La of the anchor body 50 are defined. It has a structure that can prevent the damage to the anchor body 50 by minimizing the friction between the lead-out hole (24).

The earth anchor bracket device 100 for this purpose is to maintain the reference tension angle of the anchor body 50 and at the same time to support the tension force applied to the free field (La) of the anchor body (50) The main support member 20 having the withdrawal hole 24 through which the free field La of 50 can be drawn out, the reference tension angle of the anchor body 50 and the tension direction of the anchor body 50 corresponding thereto coincide with each other. If not, the free field La of the anchor body 50 is guided in the tensile direction corresponding to the reference tension angle of the anchor body 50 so that the free field La and the horizontal beam 80 of the anchor body 50. Alternatively, the guide member 30 fixedly installed on the main support member 20 and the guide member 30 may be concentrated so as to minimize friction between the free field La of the anchor body 50 and the drawing hole 24. It is fixedly installed on the main support member 20 so as to substantially distribute the tensile force of the anchor body 50 is applied to the main support member 20 evenly. And a secondary support member 40.

The anchor body 50 is a general structure used in the earth construction method of civil engineering, building construction, the anchor body 50 by using a cone (51) in a state in which the stranded strand of approximately 4 to 5 strands with a hydraulic jack or the like Has a structure capable of supporting the tensile force of the main support member (20).

The main support member 20 supports a pair of support plates 21 and a support plate 21 spaced apart from each other by a predetermined interval so as to span the pair of horizontal beams 80. Corresponding to the tension of the anchor plate 50 and the base plates 22a and 22b fixed to the support plate 21 so as to disperse the frictional force of the support plate 21 with respect to the upper surface of each horizontal beam 80 at the same time. It is provided with a pressure plate 23 is fixed to the support plate 21 so that the supporting pressure can be distributed to the guide member 30 and the support plate 21.

Each of the support plates 21 has an inclined side 21a perpendicular to a reference tension angle of the anchor body 50, for example, about 0 to 45 °, and an auxiliary support member 40 is provided on each inner side thereof. It is fixed by welding.

The base plates 22a and 22b are welded and fixed to the lower ends of the support plates 21 corresponding to the upper surfaces of the horizontal beams 80, respectively, to further strengthen the surface pressure on the upper surfaces of the horizontal beams 80. It is preferable to have a width wider than the separation width between the support plates 21 to be able to. The base plates 22a and 22b are fixed to the first base plate 22a at the distal end side of the support plate 21 so as to correspond to the upper surface of any one horizontal beam 80 and the other horizontal beam 80. The second base plate 22b is fixed to the lower end of the rear end side of the support plate 21 so as to correspond to the upper surface.

The acupressure plate 23 is a plate that can directly support the anchor body 50 to which the tensile force is applied, and is fixed to the inclined side 21a of each of the support plates 21 by welding, and withdrawal as described above. The ball 24 is formed, and the guide member 30 is fixedly fixed to the bottom surface so as to communicate with the drawing hole 24 by welding.

The guide member 30 is fixedly welded to the acupressure plate 23 of the main support member 20 so as to correspond to the reference tension angle of the anchor body 50. The guide member 30 has an inner diameter that matches the inner diameter of the outlet hole 24 of the acupressure plate 23, and has a lower surface of the acupressure plate 23 in a direction corresponding to the reference tension angle of the anchor body 50. It is provided with a substantially cylindrical pipe body 31 fixedly installed vertically and fixedly welded through the auxiliary support member 40 which will be described later. Therefore, the pipe body 31 of the guide member 30 is spaced apart from the free field La of the anchor body 50 by a predetermined distance from the lead hole 24 and the horizontal beam 80 of the acupressure plate 23. As a guide passage that can be made, when the reference tension angle of the anchor body 50 and the tensile direction of the anchor body 50 corresponding thereto during the construction site does not coincide with each other, when the tensile force is applied to the anchor body 50, the anchor body It is possible to prevent the free field La of the 50 from rubbing while interfering with the leading hole 24 and the horizontal beam 80 of the acupressure plate 23. That is, the pipe body 31 of the guide member 30 may be cut while the free field La of the anchor body 50 is rubbed with the outlet hole 24 and the horizontal beam 80 of the acupressure plate 23. You can rule out risks.

The pipe 31 has a length extending from the bottom of the acupressure plate 23 to the reference line of the bottom of each base plate 22a, 22b so as to be in contact with the end of the first base plate 22a. It is preferable to cut | disconnect predetermined angle obliquely in the diagonal direction from the reference line of 22a, 22b. As such, the reason why the end of the pipe 31 is inclined at a predetermined angle in an oblique direction is that the reference tension angle of the anchor body 50 and the tension direction of the anchor body 50 corresponding thereto do not coincide with each other during the site construction. In this case, when the tensile force is applied to the anchor body 50, the free field La of the anchor body 50 is to prevent the friction while interfering with the cut portion indicated by the dotted line in FIG. Alternatively, the pipe body 31 is not limited to the cylindrical shape as described above, and the free field La of the anchor body 50 is horizontal to the outlet hole 24 of the acupressure plate 23. It should be noted that it is also possible to deform to various shapes, such as square or other polygonal shapes, with guide passages that can be spaced apart from the beam 80 by a certain distance.

The auxiliary support member 40 is fixed to the pipe body 31 of the guide member 30 and the support plate 21 of the main support member 20 by welding, respectively, the acupressure plate 23 and the guide member Horizontal plate 41 capable of distributing tensile force of anchor body 50 simultaneously applied to pipe body 31 of 30 to support plate 21 and acupressure plate of main support member 20. 23, a vertical plate capable of distributing the tensile force of the anchor body 50 simultaneously applied to the pipe body 31 of the guide member 30 and the horizontal plate 41 to the support plate 21 secondly ( 42 and a mounting portion 43 formed on the vertical plate 42 to selectively mount the main support member 20 to the horizontal beam (80).

The horizontal plate 41 is penetrated and welded to the pipe body 31 of the guide member 30, and is provided on the inner surface of the support plate 21 so as to be relatively horizontal with the acupressure plate 23. It is fixedly welded and provided so that the tip part can contact the 1st base plate 22a.

The vertical plate 42 is fixedly welded to the inner surface of the support plate 21 and extends integrally with the other end of the horizontal plate 41 to form a right angle with respect to the horizontal plate 41.

The mounting portion 43 is integrally formed with the vertical plate 42 so as to mount the main support member 20 on the upper surface of the horizontal beam 80, the second base plate (with respect to the vertical plate 42) 22b) is bent to be spaced apart from the bottom by a predetermined interval. The mounting portion 43 is to mount the upper surface of the horizontal beam 80 in the spaced space between the bottom of the second base plate 22b to mount the main support member 20.

The manufacturing method and operation of the bracket for earth anchor according to the first embodiment of the present invention configured as described above are described in detail.

First, as shown in Figs. 4 and 5, the support plates 21 are arranged on the respective base plates 22a and 22b at predetermined intervals, and then each base plate 22a and 22b is placed on the support plates. (21) is fixed by welding.

Next, the pipe body 31 of the guide member 30 is fixed by welding in a state where the horizontal plate 41 of the auxiliary support member 40 is penetrated, and the acupressure plate 23 is placed on the upper end of the pipe body 31. Is fixed by welding. At this time, it is preferable that the pipe body 31 is welded to the bottom surface of the pressure plate 23 so that its internal diameter matches the internal diameter of the lead-out hole 24 of the pressure plate 23.

Subsequently, the guide member 30 to which the acupressure plate 23 is welded and the auxiliary support member 40 to which the guide member 30 is welded are disposed in the spaced space of the support plate 21, and the acupressure plate 23 is supported. The auxiliary supporting member 40 is fixed to the inner side of the support plate 21 by welding while being fixed to the inclined side 21a of the plate 21 by welding. At this time, the distal end of the vertical plate 42 is placed in contact with the first base plate 22a on the side of the acupressure plate 23, and the mounting portion 43 formed integrally with the vertical plate 42 has a second base plate ( 22b) and spaced apart from the bottom by a predetermined interval.

As such, when the manufacturing of the bracket device 100 according to the present invention is completed, as shown in FIG. 7, a plurality of H-beam piles (not shown) are driven at predetermined intervals on a predetermined ground to perform a digging operation. All.

Subsequently, excavation hole (A) is formed while digging the ground of the predetermined area partitioned by each pile to a certain depth, and the earth plate (71) between the pile and the pile arranged at a predetermined distance apart from the soil wall of the excavation hole (A). ), The earth wall 70 is formed.

Next, the horizontal beams 80 are respectively installed on the earth wall 70 so as to be spaced apart from each other by a predetermined interval, and then the virtual collapse line between the excavation hole A and the ground based on design guidelines according to the soil quality (not shown in the drawing). (Not shown), the perforation part B is formed in the earth wall 70 with the inclination angle of about 0-45 degrees at predetermined intervals using the perforation equipment. At this time, the free field La and the fixation field Lb are set around the point where the virtual collapse line (not shown) meets the puncture angle, and an anchor body 50 having a length corresponding to the length is manufactured. .

Subsequently, when the formation of the drilling portion B is completed, immediately after the drilling equipment is separated, the anchor body 50 is immediately inserted into the drilling portion B, and the grout is applied to the fixing length Lb of the anchor body 50. Inject.

Next, while the grout injected into the anchorage field Lb of the anchor body 50 is cured, the bracket device 100 of the present invention for holding the stranded wire of the anchor body 50 is mounted on the horizontal beam 80. . That is, the bracket device 100 of the present invention is erected upright, and then the upper surface of the horizontal beam 80 is assembled to the mounting portion 43 integrally formed on the vertical plate 42 of the auxiliary supporting member 40. . Then, the bracket device 100 of the present invention is firmly mounted on the horizontal beam 80 by its own weight. Therefore, the present invention has a structure that can be mounted on the horizontal beam 80 by the mounting portion 43 of the auxiliary support member 40, unlike the conventional fixed to the horizontal beam by welding, easy to construct The dismantling operation is performed by a simple operation of detaching the mounting portion 43 from the horizontal beam 80 so as not to damage the horizontal beam 80. For this reason, it is apparent that the horizontal beam 80 can be reused.

Subsequently, when the installation of the bracket device 100 is completed, the free hole La of the anchor body 50 is passed through the pipe body 31 of the guide member 30 through the drawing hole 24 of the acupressure plate 23. Withdraw).

Next, the free length La of the anchor body 50 is increased by the allowable tensile strength and fixed to the cone 51 by using the tensioning equipment.

If the tension direction of the anchor body 50 does not coincide with the reference tension angle of the anchor body 50, as shown by an imaginary line in FIG. 7, the free length of the anchor body 50 is the guide member 30. The tensile direction is guided by the pipe body 31 of) so that the free field of the anchor body 50 does not interfere with the lead hole 24 or the horizontal beam 80 of the acupressure plate 23. For this reason, unlike the related art, the free field of the anchor body 50 is worn out by the drawing hole 24 or the horizontal beam 80 of the acupressure plate 23 so that it is not cut.

On the other hand, as shown in FIG. 8, in the state where the free field of the anchor body 50 is pulled out by pulling the screw body 61 to which the free field of the anchor body 60 is connected, a nut ( 62 may be coupled to the main support member 20.

In this case, even if the tension direction of the anchor body 60 does not coincide with the reference tension angle of the anchor body 60, the free length of the anchor body 60 is changed by the pipe body 31 of the guide member 30. Since it is guided, the free field of the anchor body 60 interferes with the outgoing hole of the acupressure plate 23 or the horizontal beam 80, or the thread of the threaded body 61 is withdrawn into the outgoing hole 24 of the acupressure plate 23. It will not interfere and wear out. In addition, when the end of the pipe 31 is inclined at an angle in a diagonal direction, when the reference tension angle of the anchor body 50 and the tension direction of the anchor body 50 corresponding thereto do not coincide with each other in the field construction Even when the tensile force is applied to the anchor body 50, it is possible to prevent the free field La of the anchor body 50 from rubbing while interfering with the cutout portion indicated by the dotted line in FIG.

Thus, as shown in FIG. 6 again, the support pressure corresponding to the tensile force of the anchor body 50 is applied in the direction corresponding to the reference tension angle of the anchor body 50, the acupressure plate of the main support member 20 Tensile force applied to the (23) is distributed to the pipe body 31, the support pressure weighted to the pipe body 31 of the shiatsu plate 23 and the guide member 30 is the horizontal plate 41 of the auxiliary support member 40 ) Is primarily dispersed in the support plate 21. Thereafter, the support pressure to the tensile force of the anchor body 50 applied to the shiatsu plate 23, the pipe body 31 and the horizontal plate 41 at the same time by the vertical plate 42 of the auxiliary support member 40 Secondly, it is evenly distributed on the support plate 21. Therefore, as the support pressure for the tensile force of the anchor body 50 is evenly distributed to the main support member 20 by the pipe body 31 and the auxiliary support member 40 (acupressure plate of the main support member 20 ( 23 is not bent or the support plate 21 is not twisted.

This operation will be described in detail with reference to comparative examples and examples with reference to the data values calculated by the tester Kim Ki-woong and the approver Park Gil-jong at the "Metal Materials Center of Korea Chemical Testing Institute" on April 18, 2002.

Comparative Example A

As shown in FIG. 9, a tensile test of the conventional support bracket having a thickness of 12 t of each component showed that the support pressure of the support bracket for the bending degree of 8 mm was 31.1263 tons. The pressure was approximately 42tonf, and the bending degree at this time was 48 mm.

<Comparative Example B>

As shown in FIG. 10, a tensile test was performed on a conventional support bracket having a thickness of 14 tons of each component. As a result, the support pressure of the support bracket for a bending degree of 8 mm was 48.4487 tons, and the maximum support was obtained. The pressure was approximately 67 tons, and the degree of bending at this time was 48 mm.

Example A

As shown in FIG. 11, a tensile test of the bracket device of the present invention having a thickness of 9 t of each component showed that the support pressure of the support bracket device for a bending degree of 8 mm was 49.4882tonf. The maximum support pressure was approximately 61 tons, and the bending degree at this time was 16 mm.

<Example B>

As shown in FIG. 12, a tensile test of the bracket device of the present invention having a thickness of 12 t of each component showed that the support pressure of the support bracket device for a bending degree of 8 mm was 76.1211tonf. The maximum support pressure was approximately 85 tons, and the bending degree at this time was 16 mm.

When comparing the comparative examples and embodiments as described above, the bracket device 100 according to the present invention is designed to the guide member 30 and the auxiliary support member 40 even if the thickness of the components are designed thinner than the conventional support bracket. As the support pressure corresponding to the tensile force of the anchor body 50 is evenly distributed to the support plate 21 of the main support member 20, the acupressure plate 23 is bent or the support plate 21 even though it has a light weight structure. ) Is not twisted. In addition, even if the thickness of the components are designed thinner than the conventional support bracket, it can be seen that the support pressure for the tensile force of the anchor body 50 also increases significantly, even though the maximum support pressure is increased than the conventional support bracket It can be seen that the degree of bending appears smaller than conventional support brackets.

Therefore, the present invention can improve the support pressure corresponding to the tensile force of the anchor body even in a light weight structure, and can maximize the tensile force of the anchor body without generating bending or warping, thereby economical and shorten the air. Construction that can be possible.

FIG. 13 is an exploded perspective view showing the configuration of an earth anchor bracket device according to a second preferred embodiment of the present invention, and FIG. 14 is a combined perspective view of FIG. 13. The same components as those shown in FIGS. 3 and 4 are the same members with the same functions.

13 and 14, the earth anchor bracket device 200 according to the second embodiment of the present invention, the auxiliary support member 90 to the fitting hole 91 formed in each support plate 21 In the horizontal plate 41 corresponding to the inner surface of the support plate 21 so as to be selectively fitted and fixed, the fitting protrusions 92 protruding a predetermined length toward the inner surface of the support plate 21 are provided.

Therefore, the pipe body 31 of the guide member 30 is welded and fixed while penetrating the horizontal plate 41 of the auxiliary support member 90, and then the acupressure plate 23 is placed on the top of the pipe body 31. ) Is fixed by welding, and the fitting protrusion 92 of the horizontal plate 41 of the auxiliary supporting member 90 is fitted into the fitting hole 91 of the supporting plate 21. Then, each base plate 22a, 22b is fixed to the lower end of the support plate 21 by welding, and the auxiliary support member 90 is welded to the inner surface of the support plate 21, and the acupressure plate ( 23 is fixed to the inclined side 21a of the support plate 21 by welding. As a result, the bracket device 200 can be easily manufactured, and a higher competitive advantage can be ensured.

Since the operation of the bracket for the earth anchor according to the second embodiment of the present invention configured as described above is the same as the first embodiment, a detailed description thereof will be omitted.

As described above, the earth anchor bracket device according to the preferred embodiment of the present invention has the following effects.

First, since the support pressure with respect to the tensile force of the anchor body can be evenly distributed to the main support member by the guide member and the auxiliary support member, the main support by the tensile force of the anchor body by sufficiently overcoming the tensile force of the anchor body The member is not bent or warped, and as a result, the tensile force of the anchor body required for the specification can be sufficiently exerted.

Second, unlike the prior art, since it can sufficiently support the tensile force of the anchor body even under a light weight structure, the weight is lighter, the workability is improved, and the manufacturing cost can be reduced.

Third, because the guide member for guiding the tension direction of the anchor body is provided, even if the reference tension angle of the anchor body and the tension direction of the anchor body corresponding thereto does not coincide with each other, the free length of the anchor body is drawn out of the acupressure plate And there is no fear of damage to the anchor body by not interfering with the horizontal beam, it is possible to standardize the product to cope with the reference tension angle of the anchor body.

Fourth, because it has a structure that can be mounted on the horizontal beam, the construction properties are improved, the air is shortened, unlike the prior art does not damage the horizontal beam during the dismantling work, it is possible to reuse the horizontal beam.

Fifth, unlike fixing all the components by welding, it has a structure that can be fixed by fitting the auxiliary support member to the main support member, it is possible to secure a higher competitive advantage as the manufacturability is improved .

Claims (7)

In order to prevent the earth wall from collapsing due to the ground earth pressure acting as the earth wall when the excavation hole is formed during the excavation work of civil engineering and construction work, a horizontal beam is provided on the earth wall, and a perforated part is formed to be inclined at a predetermined angle from the earth wall. An anchor body having a predetermined length is installed in the perforation part, grouting is performed on the anchorage of the anchor body, and then a support bracket is installed on the horizontal beam, and the free field of the anchor body is applied while a predetermined tensile force is applied to the free field of the anchor body. In the earth anchor fixed to the support bracket, The main support is fixed to the horizontal beam so as to maintain the reference tension angle of the anchor body and to support the tensile force applied to the free field of the anchor body, and the free field of the anchor body has a withdrawable hole. absence; When the reference tension angle of the anchor body and the tension direction of the anchor body corresponding thereto do not coincide with each other, the free field of the anchor body is guided in the tensile direction corresponding to the reference tension angle of the anchor body, A guide member fixed to the main support member so as to correspond to a reference tension angle of the anchor body in order to minimize friction between the free beam of the horizontal beam or the anchor body and the drawing hole; And Earth anchors, characterized in that the auxiliary support member is fixed to the guide member and the main support member so as to substantially distribute the tensile force of the anchor body intensively applied to the guide member to the main support member Bracket device. The method of claim 1, The main support member is: A pair of support plates having inclined sides perpendicular to the reference tension angle of the anchor body, spaced apart from each other by a predetermined interval so as to span the horizontal beams, and having an auxiliary support member fixed to each inner side thereof; A base plate fixed to a lower end of a support plate respectively corresponding to an upper surface of the horizontal beam to support the support plate and to distribute frictional force of the support plate with respect to the upper surface of the horizontal beam; And It is provided on the inclined side of each of the support plate so that the support pressure corresponding to the tensile force of the anchor body to the guide member and the support plate, and provided with acupressure plate is fixed to the guide member to communicate with the lead hole Bracket device for earth anchors, characterized in that. The method according to claim 1 or 2, The guide member is: An earth anchor bracket device having an inner diameter that matches the inner diameter of the outlet hole, and having a cylindrical pipe body fixed perpendicularly to a bottom surface of the acupressure plate. The method of claim 3, The pipe body has a length extending from the bottom surface of the acupressure plate to the reference line of the bottom surface of the base plate so as to be in contact with the end of the base plate, and is cut in an oblique angle in an oblique direction from the reference line of the base plate. Bracket unit for anchors. The method according to claim 1 or 2, The auxiliary support member is: The guide member is fixedly installed on the inner surface of the support plate so as to be relatively horizontal to the acupressure plate so as to disperse the tensile force of the anchor body simultaneously applied to the acupressure plate and the guide member to the support plate. Fixed horizontal plates; And In order to distribute the tensile force of the anchor body simultaneously applied to the acupressure plate, the guide member, and the horizontal plate to the support plate, the horizontal plate is fixed to the inner side of the support plate and is perpendicular to the horizontal plate. And a vertical plate extending integrally with the bracket for earth anchors. The method of claim 5, The auxiliary support member is: In order to selectively mount the main support member to the horizontal beam, the earth is integrally formed with the vertical plate, characterized in that it further comprises a mounting portion bent to be spaced apart from the bottom of the base plate by a predetermined interval with respect to the vertical plate Bracket unit for anchors. The method of claim 5, The horizontal plate of the auxiliary support member is: The brackets for earth anchors, characterized in that it further comprises a fitting projection formed to protrude a predetermined length toward the inner surface of the support plate so as to selectively fit and secure the fitting hole formed in each of the supporting plate.